6JOA

Crystal structure of KatE from atypical Escherichia coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.174 

wwPDB Validation 3D Report Full Report



Literature

A single gene of a commensal microbe affects host susceptibility to enteric infection.

Yoon, M.Y.Min, K.B.Lee, K.M.Yoon, Y.Kim, Y.Oh, Y.T.Lee, K.Chun, J.Kim, B.Y.Yoon, S.H.Lee, I.Kim, C.Y.Yoon, S.S.

(2016) Nat Commun 7: 11606

  • DOI: 10.1038/ncomms11606
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Indigenous microbes inside the host intestine maintain a complex self-regulating community. The mechanisms by which gut microbes interact with intestinal pathogens remain largely unknown. Here we identify a commensal Escherichia coli strain whose exp ...

    Indigenous microbes inside the host intestine maintain a complex self-regulating community. The mechanisms by which gut microbes interact with intestinal pathogens remain largely unknown. Here we identify a commensal Escherichia coli strain whose expansion predisposes mice to infection by Vibrio cholerae, a human pathogen. We refer to this strain as 'atypical' E. coli (atEc) because of its inability to ferment lactose. The atEc strain is resistant to reactive oxygen species (ROS) and proliferates extensively in antibiotic-treated adult mice. V. cholerae infection is more severe in neonatal mice transplanted with atEc compared with those transplanted with a typical E. coli strain. Intestinal ROS levels are decreased in atEc-transplanted mice, favouring proliferation of ROS-sensitive V. cholerae. An atEc mutant defective in ROS degradation fails to facilitate V. cholerae infection when transplanted, suggesting that host infection susceptibility can be regulated by a single gene product of one particular commensal species.


    Organizational Affiliation

    Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul 03722, Korea.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Catalase
A, B, C, D
750Escherichia coli M8Mutation(s): 0 
Gene Names: B2H83_27520
EC: 1.11.1.6
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download CCD File 
A, B, C, D
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
EDO
Query on EDO

Download CCD File 
A, B, C, D
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.174 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.73α = 90
b = 178.8β = 106.79
c = 107.39γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-03-20 
  • Released Date: 2020-03-25 
  • Deposition Author(s): Park, J.B., Cho, H.-S.

Funding OrganizationLocationGrant Number
National Research Foundation (Korea)Korea, Republic Of--

Revision History 

  • Version 1.0: 2020-03-25
    Type: Initial release